Now that the cylinder is closed off, the engine needs valves to allow the combustion gases to flow out and fresh air to flow in during the process. There are usually two valves for exhaust and two for intake air on each cylinder.

Fuel Injectors

The component for getting fuel inside the cylinder is probably the most complex part of the combustion system. Fuel injectors spray fuel into the top of the cylinder in very precise patterns with highly controlled timing.

Camshaft

Most engines still rely on a mechanical system to open and close the valves, and some still use mechanical actuation (instead of electrical) for the fuel injection. The camshaft’s revolutions control the timing of each event through the geometry and placement of the lobes on the shaft.

Cylinders

Now that we have built the engine block, let’s take a closer look at how these parts work together to produce a combustion event.

The crankshaft ensures the four cylinders of this engine are on different strokes for smooth operation. Engines with more than four cylinders are optimized to get the most power and smoothest operation possible. This balancing of the engine is why most modern engines have an even number of cylinders.

We believe the quality is the key to success. From every single spare part of the products to finished products ,our engineers test strictly, so the quality of our products is reliable .